<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:ck0000935823="http://www.PacificLife.com/20261021"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:vip="http://xbrl.sec.gov/vip/2026"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xhtml="http://www.w3.org/1999/xhtml"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="ck0000935823-20261021.xsd" xlink:type="simple"/>
    <context id="c0">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000935823</identifier>
        </entity>
        <period>
            <startDate>2026-10-21</startDate>
            <endDate>2026-10-21</endDate>
        </period>
    </context>
    <context id="c1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000935823</identifier>
            <segment>
                <xbrldi:explicitMember dimension="vip:PortfolioCompanyAxis">ck0000935823:InvescoVIAmericanValueFundSeriesIIMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-21</startDate>
            <endDate>2026-10-21</endDate>
        </period>
    </context>
    <context id="c2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000935823</identifier>
            <segment>
                <xbrldi:explicitMember dimension="vip:PortfolioCompanyAxis">ck0000935823:PacificSelectFundDividendGrowthPortfolioClassIMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-21</startDate>
            <endDate>2026-10-21</endDate>
        </period>
    </context>
    <context id="c3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000935823</identifier>
            <segment>
                <xbrldi:explicitMember dimension="vip:PortfolioCompanyAxis">ck0000935823:PacificSelectFundInternationalSmallCapPortfolioClassIMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-21</startDate>
            <endDate>2026-10-21</endDate>
        </period>
    </context>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <dei:DocumentPeriodEndDate contextRef="c0" id="ixv-151">2026-10-21</dei:DocumentPeriodEndDate>
    <vip:InvestmentOptionsN4TextBlock contextRef="c0" id="ixv-59">&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;&lt;i&gt;As of November&#160;1, 2026, the underlying fund information
related to the Current Expenses in the &lt;span style="text-decoration:underline"&gt;APPENDIX: FUNDS AVAILABLE UNDER THE POLICY&lt;/span&gt; section has been deleted and replaced with the
following:&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;




&lt;table cellpadding="0" style="width: 50%; border-collapse: collapse; font-family: Times New Roman, Times, Serif; margin-left: auto; margin-right: auto; border-spacing: 0px;"&gt; &lt;tr style="background-color: #E8E8E8"&gt; &lt;td style="width: 73%; border: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Fund; Advisor (Subadvisor)&lt;/b&gt;&#160;&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 27%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Current&lt;br/&gt; Expenses&lt;/b&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top; "&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font-size: 12pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Invesco V.I. American Value Fund Series&#160;II&lt;/b&gt;; Invesco Advisers,&#160;Inc.&lt;/span&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;1.01%&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 11pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top; "&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;Pacific Select Fund Dividend Growth Portfolio Class&#160;I&lt;/b&gt;; Pacific Life Fund Advisors LLC (T. Rowe Price Associates,&#160;Inc.)&lt;/p&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;0.83%&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 11pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top; "&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;Pacific Select Fund International Small-Cap Portfolio Class&#160;I&lt;/b&gt;; Pacific Life Fund Advisors LLC (Wellington Management Company LLP)&lt;/p&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;1.11%&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 11pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"&gt;&lt;sup&gt;1&lt;/sup&gt;To help limit Fund expenses, Fund advisers have contractually
agreed to reduce investment advisory fees and/or otherwise reimburse certain of their Funds which reflect temporary fee reductions. There
can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus,
and they may not cover certain expenses such as extraordinary expenses.&#160;&lt;b&gt;See each Fund prospectus for complete information regarding
these arrangements.&lt;/b&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;Effective November&#160;1, 2026, the &lt;b&gt;APPENDIX: FUNDS AVAILABLE
UNDER THE CONTRACT&lt;/b&gt; is amended to reflect the following changes&lt;/p&gt;




&lt;table cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; border-spacing: 0px;" width="100%"&gt;&lt;tr style="vertical-align: top"&gt;
&lt;td style="width: 0.25in"&gt;&lt;/td&gt;&lt;td style="width: 0.25in"&gt;&lt;span&gt;&#x25cf;&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&lt;span style="font-family: Times New Roman, Times, Serif"&gt;The Subadvisor for the Pacific Select Fund International Small-Cap will change
from FIAM LLC to Wellington Management Company LLP.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</vip:InvestmentOptionsN4TextBlock>
    <vip:ProspectusesAvailableTextBlock contextRef="c0" id="ixv-60">&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;&lt;i&gt;As of November&#160;1, 2026, the underlying fund information
related to the Current Expenses in the &lt;span style="text-decoration:underline"&gt;APPENDIX: FUNDS AVAILABLE UNDER THE POLICY&lt;/span&gt; section has been deleted and replaced with the
following:&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;</vip:ProspectusesAvailableTextBlock>
    <vip:PortfolioCompaniesTableTextBlock contextRef="c0" id="ixv-66">&lt;table cellpadding="0" style="width: 50%; border-collapse: collapse; font-family: Times New Roman, Times, Serif; margin-left: auto; margin-right: auto; border-spacing: 0px;"&gt; &lt;tr style="background-color: #E8E8E8"&gt; &lt;td style="width: 73%; border: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Fund; Advisor (Subadvisor)&lt;/b&gt;&#160;&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 27%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Current&lt;br/&gt; Expenses&lt;/b&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top; "&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font-size: 12pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Invesco V.I. American Value Fund Series&#160;II&lt;/b&gt;; Invesco Advisers,&#160;Inc.&lt;/span&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;1.01%&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 11pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top; "&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;Pacific Select Fund Dividend Growth Portfolio Class&#160;I&lt;/b&gt;; Pacific Life Fund Advisors LLC (T. Rowe Price Associates,&#160;Inc.)&lt;/p&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;0.83%&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 11pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr style="vertical-align: top; "&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid"&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;Pacific Select Fund International Small-Cap Portfolio Class&#160;I&lt;/b&gt;; Pacific Life Fund Advisors LLC (Wellington Management Company LLP)&lt;/p&gt; &lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font-size: 12pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;1.11%&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 11pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"&gt;&lt;sup&gt;1&lt;/sup&gt;To help limit Fund expenses, Fund advisers have contractually
agreed to reduce investment advisory fees and/or otherwise reimburse certain of their Funds which reflect temporary fee reductions. There
can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus,
and they may not cover certain expenses such as extraordinary expenses.&#160;&lt;b&gt;See each Fund prospectus for complete information regarding
these arrangements.&lt;/b&gt;&lt;/p&gt;</vip:PortfolioCompaniesTableTextBlock>
    <vip:PortfolioCompanyNameTextBlock contextRef="c1" id="ixv-79">&lt;b&gt;Invesco V.I. American Value Fund Series&#160;II&lt;/b&gt;</vip:PortfolioCompanyNameTextBlock>
    <vip:PortfolioCompanyAdviserTextBlock contextRef="c1" id="ixv-152">Invesco Advisers,&#160;Inc.</vip:PortfolioCompanyAdviserTextBlock>
    <vip:CurrentExpensesPercent contextRef="c1" decimals="4" id="ix_0_fact" unitRef="pure">0.0101</vip:CurrentExpensesPercent>
    <vip:PortfolioCompanyNameTextBlock contextRef="c2" id="ixv-88">&lt;b&gt;Pacific Select Fund Dividend Growth Portfolio Class&#160;I&lt;/b&gt;</vip:PortfolioCompanyNameTextBlock>
    <vip:PortfolioCompanyAdviserTextBlock contextRef="c2" id="ixv-154">Pacific Life Fund Advisors LLC</vip:PortfolioCompanyAdviserTextBlock>
    <vip:PortfolioCompanySubadviserTextBlock contextRef="c2" id="ixv-155">T. Rowe Price Associates,&#160;Inc.</vip:PortfolioCompanySubadviserTextBlock>
    <vip:CurrentExpensesPercent contextRef="c2" decimals="4" id="ix_1_fact" unitRef="pure">0.0083</vip:CurrentExpensesPercent>
    <vip:PortfolioCompanyNameTextBlock contextRef="c3" id="ixv-99">&lt;b&gt;Pacific Select Fund International Small-Cap Portfolio Class&#160;I&lt;/b&gt;</vip:PortfolioCompanyNameTextBlock>
    <vip:PortfolioCompanyAdviserTextBlock contextRef="c3" id="ixv-157">Pacific Life Fund Advisors LLC</vip:PortfolioCompanyAdviserTextBlock>
    <vip:PortfolioCompanySubadviserTextBlock contextRef="c3" id="ixv-158">Wellington Management Company LLP</vip:PortfolioCompanySubadviserTextBlock>
    <vip:CurrentExpensesPercent contextRef="c3" decimals="4" id="ix_2_fact" unitRef="pure">0.0111</vip:CurrentExpensesPercent>
    <vip:TemporaryFeeReductionsCurrentExpensesTextBlock contextRef="c0" id="ixv-111">To help limit Fund expenses, Fund advisers have contractually
agreed to reduce investment advisory fees and/or otherwise reimburse certain of their Funds which reflect temporary fee reductions. There
can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus,
and they may not cover certain expenses such as extraordinary expenses.&#160;&lt;b&gt;See each Fund prospectus for complete information regarding
these arrangements.&lt;/b&gt;</vip:TemporaryFeeReductionsCurrentExpensesTextBlock>
    <vip:PortfolioCompanySubadviserTextBlock contextRef="c3" id="ixv-160">Wellington Management Company LLP</vip:PortfolioCompanySubadviserTextBlock>
    <dei:DocumentType contextRef="c0" id="ixv-163">N-4</dei:DocumentType>
    <dei:EntityInvCompanyType contextRef="c0" id="ixv-164">N-4</dei:EntityInvCompanyType>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-165">0000935823</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="c0" id="ixv-166">false</dei:AmendmentFlag>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-167">SEPARATE ACCOUNT A OF PACIFIC LIFE INSURANCE CO</dei:EntityRegistrantName>
    <link:footnoteLink
      xlink:role="http://www.xbrl.org/2003/role/link"
      xlink:type="extended">
        <link:loc
          xlink:href="#ix_2_fact"
          xlink:label="ix_2_fact"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#ix_0_fact"
          xlink:label="ix_0_fact"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#ix_1_fact"
          xlink:label="ix_1_fact"
          xlink:type="locator"/>
        <link:footnote id="ix_0_footnote" xlink:label="ix_0_footnote" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">To help limit Fund expenses, Fund advisers have contractually
agreed to reduce investment advisory fees and/or otherwise reimburse certain of their Funds which reflect temporary fee reductions. There
can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus,
and they may not cover certain expenses such as extraordinary expenses.&#160;<xhtml:b>See each Fund prospectus for complete information regarding
these arrangements.</xhtml:b></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="ix_2_fact"
          xlink:to="ix_0_footnote"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="ix_0_fact"
          xlink:to="ix_0_footnote"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="ix_1_fact"
          xlink:to="ix_0_footnote"
          xlink:type="arc"/>
    </link:footnoteLink>
</xbrl>
